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- Title
Effect of the ultrasound-Fenton oxidation process with the addition of a chelating agent on the removal of petroleum-based contaminants from soil.
- Authors
Li, Ying; Li, Fangmin; Li, Fanxiu; Yuan, Fuqian; Wei, Pingfang
- Abstract
The effects of ultrasonic irradiation, the chelating agent modified Fenton reaction, and a combination of ultrasound and the Fenton method in removing petroleum contaminants from a soil were studied. The results showed that the contaminant removal rate of the Fenton treatment combined with an oxalic acid chelating agent was 55.6 % higher than that without a chelating agent. The average removal rate of the contaminants using the ultrasound-Fenton treatment was 59.0 % higher than that without ultrasonic treatment. A combination of ultrasound and an Fe/Fe-oxalate complex-modified Fenton reagent resulted in significantly higher removal rates of n-alkanes (CH, n < 28), isoprenoid hydrocarbons, aromatic hydrocarbons, and saturated polycyclic terpenes compared with the ultrasound treatment alone or the Fenton method. The Fenton reaction and the ultrasound-Fenton treatment can unselectively remove multiple components of residual hydrocarbons and a number of benzene rings in polycyclic aromatic hydrocarbons. The chemistry of the heterocyclic compounds and the position and number of substituents can affect the degradation process.
- Subjects
IRRADIATION; CHELATING agents; HABER-Weiss reaction; ISOPENTENOIDS; AROMATIC compounds; TERPENES
- Publication
Environmental Science & Pollution Research, 2015, Vol 22, Issue 23, p18446
- ISSN
0944-1344
- Publication type
Article
- DOI
10.1007/s11356-015-5137-8